Oleg Kovalenko
PHP Developer at BigCommerce
Ukraine
Summary
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SeniorOleg Kovalenko is a seasoned PHP developer with over 10 years of experience building and optimizing web applications and eCommerce systems, currently contributing at BigCommerce. He brings deep backend expertise in PHP/Yii, MySQL optimization, and payment integrations, and has hands-on experience improving checkout flows and adding PayPal, OXXO and Venmo support in a widely used BigCommerce checkout SDK. His background spans full-stack work, DevOps-style server migrations and virtualization, and past leadership running IT operations for a major confectionery factory. Comfortable across legacy and modern stacks, he blends low-level infrastructure know-how with polished frontend integration skills. Based in Ukraine, Oleg pairs pragmatic problem-solving with a track record of shipping production-ready solutions for complex, transactional systems.
10 years of coding experience
13 years of employment as a software developer
Russian, Ukrainian, English
Github Skills (6)
paypal10
checkout10
javascript10
sdk10
front-end-development10
react7
Programming languages (3)
Github contributions (5)
bigcommerce/checkout-sdk-js
Apr 2022 - Jun 2022
BigCommerce Checkout JavaScript SDK
Role in this project:
Front-end Developer
Front-end DeveloperContributions:11 reviews, 8 commits, 19 PRs in 2 months
Contributions summary:Oleg primarily contributed to the front-end aspects of the BigCommerce Checkout JavaScript SDK, focusing on integrations with the PayPal Commerce platform. Their work involved updating and integrating with the PayPal JavaScript SDK, adding support for OXXO and Venmo alternative payment methods, and refactoring payment processing flows. The user's commits demonstrate an understanding of payment strategy implementations, button integrations, and the overall checkout experience within the BigCommerce ecosystem.
payment-methodsstorekitadyenpayment-processingsubscription
koa75/checkout-js-1
Jan 2021 - Feb 2023
Optimized One-Page Checkout
Contributions:35 pushes, 7 branches, 12 tags in 2 years 1 month
javascriptcheckoutoptimizedcheckout-pageone-page
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